INDEX OF INVENTIONS Letters Patent of the United States were Granted in the Week Ending October 15 1878 AND EACH BEARING THAT DATE. COMMUNICATIONS RECEIVED. English Patents Issued to Americans., scientific american, 1878-12-14
INDEX OF INVENTIONS Letters Patent of the United States were Granted in the Week Ending October 15 1878 AND EACH BEARING THAT DATE. COMMUNICATIONS RECEIVED. English Patents Issued to Americans., scientific american, 1878-12-14
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